22221003 has 8 divisors (see below), whose sum is σ = 33860608. Its totient is φ = 12697704.

The previous prime is 22220987. The next prime is 22221007. The reversal of 22221003 is 30012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22221003 - 2⁴ = 22220987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221003.

It is not an unprimeable number, because it can be changed into a prime (22221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529051 + ... + 529092.

It is an arithmetic number, because the mean of its divisors is an integer number (4232576).

Almost surely, 2^22221003 is an apocalyptic number.

22221003 is a deficient number, since it is larger than the sum of its proper divisors (11639605).

22221003 is a wasteful number, since it uses less digits than its factorization.

22221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058153.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22221003 is about 4713.9158880913. The cubic root of 22221003 is about 281.1390800140.

Adding to 22221003 its reverse (30012222), we get a palindrome (52233225).

The spelling of 22221003 in words is "twenty-two million, two hundred twenty-one thousand, three".